Reference 1 : Vitamin D Before, during and after Pregnancy Effect on Neonates and Children

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Reference 2 : Folic acid supplementation for pregnant women and those planning pregnancy 2015 update

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Reference 3 : Supplementation of folic acid in pregnancy and the risk of preeclampsia and gestational hypertension a meta-analysis

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Reference 4 : Safety and efficacy of supplements in pregnancy

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Reference 5 : Influence of mineral and vitamin supplements on pregnancy outcome

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Reference 6 : Acid folic and pregnancy A mandatory supplementation

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